Midi issues

Hi, I am dumbfounded because I never had this issue before. I've been using Cakewalk for 20 years and never faced and issue I couldn't resolve. Even last week everything was working like a charm. I can't understand what is causing this issue however. My midi controllers were working fine with my softsynths on cakewalk as usual. I use it both on my PC and laptop. When I opened a project from my laptop to my pc. I suddenly am not able to use my controller on my PC anymore with cakewalk. No midi

Thanks for the Korg link. I decided to download the latest configuration utility and found my Korg Kontrol Editor no longer worked, despite the fact that the nanoKontrol itself still worked (per MIDI-OX). After getting midi port failure messages and an inability to receive/send [communicate], I finally found how to correct the problem. Just a guess, but I think the The 2020 Korg driver uses a different device name than my previous driver. My solution was to change the device marked "(Not Conn